| Ports | 1 FXS Port |
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| Telephony Interfaces | RJ11 |
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| Network Interfaces | 1 10/100Base-T Ethernet |
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| USB | 1 Micro USB Port |
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| Protocol | SIP (RFC3261) |
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| Transport | UDP, TCP, TLS, SRTP |
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| Codec | G.711 (alaw/ulaw), G.729A/B |
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| DTMF Mode | RFC2833, SIP Info, In-band |
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| Voice Capability | ITU-T G.168 LEC Echo Cancellation, Dynamic Jitter Buffer |
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| Fax | T.30 Pass-through |
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| QoS | DiffServ, ToS, 802.1 P/Q VLAN tagging |
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| Network | DHCP, OpenVPN, PPPoE, Static Route, VLAN |
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| Network Protocol | FTP, TFTP, HTTP, HTTPS, SSH |
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| Management Protocol | TR-069 |
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| Signaling | FXS Loop Start, FXS Kewl Start |
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| Caller ID | BELL202, ETSI (V23), NTT (V23-Japan), and DTMF-based CID |
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| Disconnect Methods | Busy Tone, Polarity Reversal |
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| Power | DC 5V 1A |
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| Dimensions (LxWxH) | 85 x 58 x 24 mm |
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| Humidity | 10-90% non-condensing |
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| Storage Range | -20°C to 65°C, -4°F to 149°F |
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| Operation Range | 0°C to 40°C, 32°F to 104°F |
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| Mounting | Desktop |
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| Compatibility | Interoperable with 3CX, Asterisk, Lync Server, FreePBX and certified with Elastix and BroadSoft |
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